/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package jsp2.examples.simpletag;

import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.JspFragment;
import javax.servlet.jsp.tagext.SimpleTagSupport;

/**
 * SimpleTag handler that accepts takes three attributes of type JspFragment and
 * invokes then in a random order.
 */
public class ShuffleSimpleTag extends SimpleTagSupport {
	private JspFragment fragment1;
	private JspFragment fragment2;
	private JspFragment fragment3;

	public void doTag() throws JspException, IOException {
		switch ((int) (Math.random() * 6)) {
		case 0:
			fragment1.invoke(null);
			fragment2.invoke(null);
			fragment3.invoke(null);
			break;
		case 1:
			fragment1.invoke(null);
			fragment3.invoke(null);
			fragment2.invoke(null);
			break;
		case 2:
			fragment2.invoke(null);
			fragment1.invoke(null);
			fragment3.invoke(null);
			break;
		case 3:
			fragment2.invoke(null);
			fragment3.invoke(null);
			fragment1.invoke(null);
			break;
		case 4:
			fragment3.invoke(null);
			fragment1.invoke(null);
			fragment2.invoke(null);
			break;
		case 5:
			fragment3.invoke(null);
			fragment2.invoke(null);
			fragment1.invoke(null);
			break;
		}
	}

	public void setFragment1(JspFragment fragment1) {
		this.fragment1 = fragment1;
	}

	public void setFragment2(JspFragment fragment2) {
		this.fragment2 = fragment2;
	}

	public void setFragment3(JspFragment fragment3) {
		this.fragment3 = fragment3;
	}
}
